Sometimes her schoolmates at Timberlake Christian School asked if she was a boy or girl, Sunnie told CBS affiliate WDBJ.

Her grandmother, who is her legal guardian, said she has just always been like that.

"Sunnie realizes she's a female but she wants to do boy things," Doris Thompson told WDBJ.

But administrators at Timberlake Christian School in Timberlake, Va., did not appear to agree. They sent Sunnie's grandparents a letter reminding them of school policy.

"You're probably aware that Timberlake Christian School is a religious, Bible believing institution providing education in a distinctly Christian environment,"Doris Thompson, Sunnie's grandmother, read from the letter to ABC 27. "We believe that unless Sunnie as well as her family clearly understand that God has made her female and her dress and behavior need to follow suit with her God-ordained indentity, that TCS is not the best place for her future education."

School administrators told ABC 27 they have not accused Sunnie of any wrongdoing and simply want the family to follow all guidelines set for students.

The school's website says Timberlake was founded in 1966 and is a ministry of Timberlake Baptist Church. It has 400 students from pre-Kindergarten through 12th grade, according to the school's website.